Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Cash dividends declared per common share	$ 0.220	$ 0.205	$ 0.440	$ 0.410
Stock issued during period, shares, deferred compensation	6,439	4,902	8,378	5,541
Stock issued during period, shares, employee stock purchase plans	5,177	2,597	8,326	8,439
Issuance of common shares pursuant to the Dividend Reinvestment Plan (in shares)		3,719		8,615
Restricted stock issued during period, shares, pursuant to the 2017 stock incentive plan			54,834	27,750
Restricted stock issued during period, shares, pursuant to the 2017 stock incentive plan			4,950	2,375
Purchase of treasury shares (in shares)			262
BBM & Associates, Inc.
Stock Issued During Period, Shares, Acquisitions		25,000		25,000
Delta Bancshares Company
Stock Issued During Period, Shares, Acquisitions			2,292,270
LINCO Bancshares, Inc.
Stock Issued During Period, Shares, Acquisitions				1,262,246